tidak bisa memulai systemd - Gagal mendapatkan koneksi D-Bus
Saya mencoba untuk mengatur lebar daemon systemd pada Debian.
systemd sudah menjadi bagian dari distro ... Baru saja menambahkan file unit baru my-daemon.service di bawah /etc/systemd/system/ tetapi setelah reboot saya mendapatkan kesalahan ini tidak peduli apa yang saya lakukan. Ini bekerja sebelum reboot
~ # systemctl daemon-reload
Failed to get D-Bus connection: Unknown error -1
~ # systemctl list-units
Failed to get D-Bus connection: Unknown error -1Saya juga sudah mencoba menghapus file unit my-daemon.service dan reboot sistem... Tapi masih mendapatkan kesalahan yang sama
update
# dpkg -l | grep -i dbus
ii at-spi2-core 2.14.0-1 amd64 Assistive Technology Service Provider Interface (dbus core)
ii dbus 1.8.22-0+deb8u1 amd64 simple interprocess messaging system (daemon and utilities)
ii dbus-x11 1.8.20-0+deb8u1 amd64 simple interprocess messaging system (X11 deps)
ii libdbus-1-3:amd64 1.8.20-0+deb8u1 amd64 simple interprocess messaging system (library)
ii libdbus-glib-1-2:amd64 0.102-1 amd64 simple interprocess messaging system (GLib-based shared library)
ii libdbusmenu-glib4:amd64 12.10.2-1 amd64 library for passing menus over DBus
ii libdbusmenu-gtk4:amd64 12.10.2-1 amd64 library for passing menus over DBus - GTK+ version
ii libnet-dbus-perl 1.0.0-2+b2 amd64 Perl extension for the DBus bindings
ii libnih-dbus1 1.0.3-4.3 amd64 NIH D-Bus Bindings Library
ii libqt4-dbus:amd64 4:4.8.6+git64-g5dc8b2b+dfsg-3+deb8u1 amd64 Qt 4 D-Bus module
ii libqt5dbus5:amd64 5.3.2+dfsg-4+deb8u1 amd64 Qt 5 D-Bus module
ii libqtdbus4:amd64 4:4.8.6+git64-g5dc8b2b+dfsg-3+deb8u1 amd64 Qt 4 D-Bus module library
ii qdbus 4:4.8.6+git64-g5dc8b2b+dfsg-3+deb8u1 amd64 Qt 4 D-Bus toolupdate 2
# cd /run/dbus && ls -la
total 4
drwxr-xr-x 2 messagebus messagebus 80 Feb 2 11:08 .
drwxr-xr-x 21 root root 740 Feb 6 19:33 ..
-rw-r--r-- 1 root root 5 Feb 2 11:08 pid
srwxrwxrwx 1 root root 0 Feb 2 11:08 system_bus_socket
# cat /etc/fstab
proc /proc proc defaults 0 0
/dev/md/0 none swap sw 0 0
/dev/md/1 /boot ext3 defaults 0 0
/dev/md/2 / ext4 defaults 0 0
Resolusi
Pasang systemd-sysv:
apt install systemd-sysvPenjelasan
Gagal mendapatkan koneksi D-Bus: Unknown error -1 berarti systemd tidak berjalan.
Berikut adalah instalasi LMDE 2 saya, yang sangat mirip dengan Debian 8:
lmde ~ # systemctl status ssh.service
Failed to get D-Bus connection: Unknown error -1Pada sistem Anda, /sbin/init mungkin bukan symlink yang menunjuk ke /lib/systemd/systemd. Inilah'seperti apa tampilannya pada LMDE 2:
lmde ~ # file /sbin/init
/sbin/init: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 2.6.32, BuildID[sha1]=416c01d5df07b3a795694ff3360339b509daaf86, strippedInilah'seperti apa tampilannya di Ubuntu 16.04 LTS, yang menjalankan systemd secara default:
root@node51 [~]# file /sbin/init
/sbin/init: symbolic link to /lib/systemd/systemdUntuk mengatasinya, gantikan paket sysvinit-core dengan systemd-sysv:
lmde ~ # apt install systemd-sysv
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be REMOVED:
sysvinit-core
The following NEW packages will be installed:
systemd-sysv
0 upgraded, 1 newly installed, 1 to remove and 533 not upgraded.
Need to get 32.7 kB of archives.
After this operation, 177 kB disk space will be freed.
Do you want to continue? [Y/n] Y
Get:1 http://packages.linuxmint.com/ betsy/upstream systemd-sysv amd64 215+12+betsy [32.7 kB]
Fetched 32.7 kB in 0s (81.1 kB/s)
dpkg: sysvinit-core: dependency problems, but removing anyway as you requested:
init depends on systemd-sysv | sysvinit-core | upstart; however:
Package systemd-sysv is not installed.
Package sysvinit-core is to be removed.
Package upstart is not installed.
(Reading database ... 159705 files and directories currently installed.)
Removing sysvinit-core (2.88dsf-58) ...
Processing triggers for man-db (2.7.0.2-5) ...
Selecting previously unselected package systemd-sysv.
(Reading database ... 159681 files and directories currently installed.)
Preparing to unpack .../systemd-sysv_215+12+betsy_amd64.deb ...
Unpacking systemd-sysv (215+12+betsy) ...
Processing triggers for man-db (2.7.0.2-5) ...
Setting up systemd-sysv (215+12+betsy) ...Sekarang reboot dengan reboot.
Setelah sistem reboot, Anda akan menjalankan systemd, bukan SysV:
lmde ~ # file /sbin/init
/sbin/init: symbolic link to /lib/systemd/systemd
lmde ~ # systemctl status ssh.service
● ssh.service - OpenBSD Secure Shell server
Loaded: loaded (/lib/systemd/system/ssh.service; enabled)
Active: active (running) since Wed 2017-02-08 06:58:27 CST; 1min 10s ago
Main PID: 598 (sshd)
CGroup: /system.slice/ssh.service
└─598 /usr/sbin/sshd -D
Feb 08 06:58:27 lmde sshd[598]: Server listening on 0.0.0.0 port 22.
Feb 08 06:58:27 lmde sshd[598]: Server listening on :: port 22.
Feb 08 06:58:29 lmde sshd[598]: Received SIGHUP; restarting.
Feb 08 06:58:29 lmde sshd[598]: Server listening on 0.0.0.0 port 22.
Feb 08 06:58:29 lmde sshd[598]: Server listening on :: port 22.
Feb 08 06:58:44 lmde sshd[1614]: Accepted password for root from 10.0.0.2 port 59703 ssh2
Feb 08 06:58:44 lmde sshd[1614]: pam_unix(sshd:session): session opened for user root by (uid=0)Kemungkinan Penyebabnya?
Anda menunjukkan bahwa systemd pada instalasi Debian Anda bekerja di masa lalu. Ada kemungkinan bahwa sebuah paket atau dependensinya membutuhkan SysVinit dan bukannya systemd dan menghapus atau menonaktifkan systemd.
Waspadai dependensi yang rusak jika hal ini terjadi.
Sumber Daya Tambahan
Dokumentasi
Deskripsi dari sysvinit-core
lmde ~ # apt show sysvinit-core
Package: sysvinit-core
State: not installed
Version: 2.88dsf-59
Priority: extra
Section: admin
Maintainer: Debian sysvinit maintainers <[email protected]>
Architecture: amd64
Uncompressed Size: 199 k
Depends: initscripts (>= 2.88dsf-13.3), sysv-rc | file-rc, sysvinit-utils (>=
2.86.ds1-66), libc6 (>= 2.15), libselinux1 (>= 1.32), libsepol1 (>=
1.14), debconf (>= 0.5) | debconf-2.0, debianutils (>= 4)
Conflicts: systemd-sysv, systemd-sysv, upstart, upstart, sysvinit-core
Replaces: systemd-sysv, systemd-sysv, sysvinit (< 2.88dsf-44~), sysvinit (<
2.88dsf-44~), upstart, upstart
Description: System-V-like init utilities
This package contains programs required for booting a Debian system and doing
basic process management.
The most important program in the package is /sbin/init. It is the first
process started on boot and continues to run as process number 1 until the
system halts. All other processes are descended from it.
Homepage: http://savannah.nongnu.org/projects/sysvinitDeskripsi dari systemd-sysv
lmde ~ # apt show systemd-sysv
Package: systemd-sysv
State: installed
Automatically installed: no
Version: 215+12+betsy
Priority: extra
Section: admin
Maintainer: Debian systemd Maintainers <[email protected]>
Architecture: amd64
Uncompressed Size: 77.8 k
Depends: systemd (= 215+12+betsy)
PreDepends: systemd
Conflicts: sysvinit-core, sysvinit-core, upstart, upstart, systemd-sysv
Replaces: sysvinit (< 2.88dsf-44~), sysvinit (< 2.88dsf-44~), sysvinit-core,
sysvinit-core, upstart, upstart
Description: system and service manager - SysV links
systemd is a replacement for sysvinit. It is dependency-based and able to read
the LSB init script headers in addition to parsing rcN.d links as hints.
It also provides process supervision using cgroups and the ability to not only
depend on other init script being started, but also availability of a given
mount point or dbus service.
This package provides the manual pages and links needed for systemd to replace
sysvinit. Installing systemd-sysv will overwrite /sbin/init with a link to
systemd.
Homepage: http://www.freedesktop.org/wiki/Software/systemd
verifikasi prasyarat
Diperlukan /dev yang terisi (setidaknya sebagian). Tergantung pada setup Anda (misalnya pada sistem embedded), periksa apakah opsi konfigurasi kernel Linux CONFIG_DEVTMPFS dan CONFIG_DEVTMPFS_MOUNT sudah diset. Juga dukungan untuk cgroups dan fanotify direkomendasikan untuk operasi yang sempurna, jadi periksa apakah opsi konfigurasi kernel Linux CONFIG_CGROUPS dan CONFIG_FANOTIFY telah diset.
Pesan "Gagal mendapatkan koneksi D-Bus: Tidak ada koneksi ke layanan manager." selama berbagai operasi systemctl merupakan indikator bahwa ini tidak ada.
Sumber artikel: https://freedesktop.org/wiki/Software/systemd/Debugging/
